Unable to drop table

Question

Hello,
I'm currently tring to drop a table using a process trigered by a button click
Icreated my button and also a "PL/SQL process" and I put
DROP TABLE &P0_TABLE_NAME. CASCADE CONSTRAINTS;
inside field "source" with ticking the checkbox "Do not validate PL/SQL code (parse PL/SQL code at runtime only)."
But when a click on the button I have the following error
ORA-06550: line 1, column 7: PLS-00103: Encountered the symbol "DROP" when expecting one of the following: begin case declare exit for goto if loop mod null pragma raise return select update while with <an identifier> <a double-quoted delimited-identifier> <a bind variable> << close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe
     Error      Error while dropping table
OK      
Do anyone have a clue about this ?
Debug trace is
A C C E P T: Request="Purge"
0.00: Metadata: Fetch application definition and shortcuts
0.00: alter session set nls_language="AMERICAN"
0.00: alter session set nls_territory="AMERICA"
0.00: ...NLS: Set Decimal separator="."
0.00: ...NLS: Set NLS Group separator=","
0.00: ...NLS: Set date format="DD-MON-RR"
0.00: ...Setting session time_zone to +02:00
0.00: NLS: wwv_flow.g_flow_language_derived_from=0: wwv_flow.g_browser_language=en-us
0.00: Fetch session state from database
0.01: ...Check session 2289784661666743 owner
0.01: ...Check for session expiration:
0.01: ...Metadata: Fetch Page, Computation, Process, and Branch
0.01: Session: Fetch session header information
0.01: ...Metadata: Fetch page attributes for application 121, page 2
0.01: ...Validate item page affinity.
0.03: ...Validate hidden_protected items.
0.03: ...Check authorization security schemes
0.03: Session State: Save form items and p_arg_values
0.03: ...Session State: Save "P0_TABLE_NAME" - saving same value: "STATPHI_595730051"
0.04: ...Session State: Save "P2_TABLE_NAME" - saving same value: "STATPHI_595730051"
0.04: ...Session State: Save "P2_TYPE" - saving same value: "2"
0.04: ...Session State: Save "P2_CALENDAR" - saving same value: "PA"
0.04: ...Session State: Save "P2_FILE_NAME" - saving same value: ""
0.04: Processing point: ON_SUBMIT_BEFORE_COMPUTATION
0.04: Branch point: BEFORE_COMPUTATION
0.04: Computation point: AFTER_SUBMIT
0.04: Tabs: Perform Branching for Tab Requests
0.04: Branch point: BEFORE_VALIDATION
0.04: Perform validations:
0.04: Branch point: BEFORE_PROCESSING
0.04: Processing point: AFTER_SUBMIT
0.04: Item button "P2_PURGE_TABLE" pressed process.
0.04: ...Process "DROP TABLE": PLSQL (AFTER_SUBMIT) DROP TABLE &P0_TABLE_NAME. CASCADE CONSTRAINTS;
0.06: Encountered unhandled exception in process type PLSQL
0.06: Show ERROR page...
0.06: Performing rollback...
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Answer 1

Hi user631592 ;-)
You can't used directly a DDL statment.
But you can use an EXECUTE IMMEDIATE in your process.
SO
BEGIN
EXECUTE IMMEDIATE ' DROP TABLE STATPHI_595730051';
END;
Regards